With most of the crop now in the 35-45 day old range, gypsum needs to be applied. I know you may be a little late due to the rain, but try to get it out as quickly as you can.

• Several growers have asked if gypsum needs to be applied again on fields where they received excessive rain from the tropical storm. This is not an easy question to answer.

Everyone who is in a good rotation and has maintained their fields for pH, fertility, etc., and have applied a ton of gypsum should be okay.

Re-application of gypsum might be needed in a few extremely sandy fields planted to a large Virginia variety, like Gregory or Spain, that received heavy rains. In these cases, before I spent another $40 per acre, I would take a 3-inch deep core soil sample (several in a large field) and send it to the soil fertility lab to determine residual calcium in the soil.

For the 40-45 day peanuts, a fungicide program will need to be initiated. You may want to start a little earlier in fields that were planted in peanuts last year (no rotation).

• With the rain in the forecast for the next week or so, Headline or Tilt/Bravo at 45 DAP may be needed to stay ahead of potential leaf spot development on susceptible varieties or in fields planted to peanuts last year.

Know the resistance package of your variety.

• Bailey and Sugg have good disease packages; therefore, growers can reduce fungicide inputs without losing yield.* Remember Sugg may be more susceptible to select diseases than Bailey.

• Below are a few examples of a reduced fungicide program that can be used with Bailey.

• In our research on Bailey, the substitution of other fungicides at 60DAP has not always shown a significant increase in yield compared with a 4-spray tebuconazole program.

• A more extensive fungicide program will be needed for other Virginia varieties and all runner varieties.

 

45   DAP

60   DAP

75   DAP

95   DAP

tebuconazole 7.2 oz+ Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

Provost 10.7 oz

tebuconazole 7.2 oz+ Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

Convoy 16 oz +  Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

Abound 18 oz

tebuconazole 7.2 oz+ Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

Fontelis 16 oz

tebuconazole 7.2 oz+ Bravo 1.5 pt

tebuconazole 7.2 oz+ Bravo 1.5 pt

 

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